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Electronics Technology
List of top Electronics Technology Questions
The process by which the information is modified with the help of locally generated carriers is called ___________.
(Scrambling / Modulation)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
Which of the following is not a feature of HDTV?
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
A varactor diode is used in________________________ stage of a TV receiver.
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
FM modulator is used in_____________________ section of a TV transmitter.
(Audio / Video)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
The picture tube of a TV receiver is known as_____________________.
(Visual tube / Cathode ray tube)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
As compared to other storage media, a CD has lower signal-to-noise ratio. (True/False)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
HF biasing is used in________________________.
(Magnetic tape recording / DVD recording)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
Optical recording system needs a motor. (True/False)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
In a CD recorder, the stage that combines digital data with error control and sync word is:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
The play time of a DVD is:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
Which of the following is not part of A to D Converter?
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electronics
Ribbon tweeters are often used in place of horn loaded compression tweeters because:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
What is the frequency range of flute?
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
Sound waves produced at the back of a loudspeaker are________________________ degrees out of phase with respect to sound waves produced in front.
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
The loudspeaker driver used for low frequency range is called_____________________.
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
Crystal microphones work based on:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
A moving coil microphone is also called:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
Decibel is the unit used to measure sound intensity. (True/False)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
sound
Maintenance and servicing of machines in large manufacturing industries are done:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electrical Safety
In three-prong plugs, the third prong works as:
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electrical Safety
Damaged cables must be repaired or removed from service immediately. (True/False)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
Electrical Safety
The process of identification of hazards in the workplace and their associated effect on health is called evaluation. (True/False)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
First Aid and Safety
Which of the following is not an occupational disease?
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
First Aid and Safety
Identify the picture.
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
First Aid and Safety
Almost all the accidents usually occur due to lack of safety. (True/False)
CBSE CLASS XII - 2025
CBSE CLASS XII
Electronics Technology
First Aid and Safety
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